>>> replace each letter in 'ABCDEFGHIJKLMNOPQR' with the corresponding NATO Phonetic alphabet code

- elapsed 1.870 seconds -
code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
nato = 'ALFA BRavo CHARLIE DELTA ECHO FOXTROT GOLF HOTEL INDIA JULIET KILO LIMA MIKE NOVEMBER OSCAR PAPA QUEBEC ROMEO SIERRA TANGO UNIFORM VICTOR WHISKY XRAY YANKEE ZULU'
result = ''
for letter in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ':
    n = code.index(letter)
if n < len(nato):
    result += nato[n] + ' '